Hot water can freeze faster than cold water.
181
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Nylon is made from coal and petroleum.
42
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41